OPTIM II: A 'Magic' Compatible Large-Scale Automated Minimum Weight Design Program. Volume I. Engineers and Users Manual.
Abstract
A pilot computer program OPTIM was developed previously for the weight optimization of complex finite element models of real structures subject to strength and stiffness constraints. The program was developed using optimality criteria to generate a highly efficient iterative optimization procedure with good convergence characteristics which are independent of problem size. In the present study, the pilot program is expanded both in capacity and scope to a new version OPTIM 2 which is compatible with the MAGIC finite element analysis system. The finite element library is expanded by the addition of five new elements and a number of special computational features are provided to extend the utility of the program. The input/output is compatible with MAGIC but OPTIM 2 can be used as a stand-alone analysis program The report presents a complete development of the theoretical basis for stiffness-based optimality criteria along with description of the program features.
Document Details
- Document Type
- Technical Report
- Publication Date
- Jul 01, 1974
- Accession Number
- ADA006747
Entities
People
- D. M. Dupree
- L. Berke
- R. A. Gellatly
Organizations
- Bell Aircraft Corporation